Remington 870 Serial Number on the BARREL

Interesting post and photo from XLIV on Remington 870 Forum:

“Okay i’m mystyfied now. I had heard they werent numbered to the receiver and checked mine. I have at least two early ones that are serial numbered to the rcvr. One in 20g and one in 12. Does anyone else have an early 870’s with a serial number on the barrel?

44”

Remington 870 Serial Number on the BARREL

Remington 870 Serial Number on the BARREL

Do you have serial number on the barrel of your Remington 870?